This is a five-day course.
Course Base Fees: $3,000 USD
PROT 407 provides an in-depth study of the principles and schemes for protecting high-voltage power transmission lines. The course provides advanced guidelines for relay application and settings for transmission lines, including series-compensated lines, and reviews time-domain ultra-high-speed line protection principles. Additional topics include the application and settings of power swing blocking and out-of-step tripping functions, an overview of power system faults, and instrument transformers.
This course is intended for engineers who need a comprehensive understanding of the design concepts and methods used in protecting high-voltage power transmission lines.
- Power System Faults
- Class Exercise: Autotransformer High-Voltage Side Single-Phase-to-Ground Fault Calculation
- Class Exercise: Autotransformer Tertiary Winding and Neutral Fault Current Calculation
- Power Line Overview
- Relaying Fundamentals
- Class Exercise: Relaying Fundamentals
- Instrument Transformers
- Class Exercise: Current Transformers
- Line Directional Overcurrent Protection
- Class Exercise: Line Directional Overcurrent Protection
- Line Distance Protection
- Class Exercise: Line Distance Protection Settings Calculation
- Line Directional Comparison Protection
- Line Current-Based Protection
- Time-Domain Line Protection
- Series-Compensated Line Protection
- Power Swing Blocking and Out-of-Step Tripping
- Class Exercise: Power Swing Blocking Element Setting Calculation
Note: This course teaches fundamental knowledge but does not provide hands-on experience with SEL relays.
At the conclusion of this course, students can:
- Describe transmission line protection problems and identify solutions using digital relays.
- Select the appropriate transmission line protection schemes for various applications.
- Calculate settings for transmission line protection schemes, including directional overcurrent, distance, and pilot protection schemes.
- Specify current transformers for protective relay applications.
- Describe the various pilot protection schemes for transmission lines.
- Discuss the advantages of line current differential protection.
- Describe time-domain ultra-high-speed transmission line protection.
- Identify the challenges and solutions to series-compensated transmission line protection.
- Identify and apply power swing blocking and out-of-step tripping.
Student Background and Knowledge
A degree in electrical engineering or equivalent experience is recommended. In addition, we recommend that you complete PROT 401: Protecting Power Systems for Engineers OR have the following:
- Familiarity with transmission line characteristics.
- A basic knowledge of protective relay design, symmetrical components, fault analysis, and power system protection.
- A working knowledge of trigonometry, basic calculus, complex numbers, and phasor concepts.